In Japan it is far more likely that a paper notices is wrapped and around handlebars – easily torn off, in China for bike saddles are often annotated with chalk messages. Is it OK to place a sticker on someone’s bike? In what context? Why? And by whom?

And for better or for worse, applying the same set of social rules to the online space – what is an acceptable level of intrusion in your webmail inbox, your hard drive, your address book? In what context? Why? And by whom?